How do I import the downloaded world?

Open the .mcworld file and Minecraft Bedrock imports it, or unzip it into the games/com.mojang/minecraftWorlds folder yourself.

Can I make the model much larger this way?

Yes. A world has no structure-block size cap, so large build sizes that would not fit a .mcstructure are fine here — the browser's memory becomes the practical limit.

Is it a full world or just the build?

A complete Bedrock save, generated around the voxelized model, so it loads directly rather than needing to be pasted into another world.

Does my .obj get uploaded anywhere?

No. Parsing, voxelization, and world packaging all happen in your browser.

Convert .obj to .mcworld

Walk around your 3D model in Minecraft. Bloxelizer voxelizes the .obj in your browser and packages the result as a .mcworld you can open directly to import into Bedrock.

Free & unlimited

Runs in your browser

3D & layer previews

Drop a Minecraft schematic

orBrowse

We'll detect the format, let you view your build layer by layer in 2D / 3D, and let you export it to any format.

.schem

.litematic

.bp

.mcstructure

.nbt

.schematic

.mcstructurezip

.mcworld

.zip(Java world)

.prefab.json

.json

.glb

.gltf

.obj

.mtl

.stl

.bbmodel

.geo.json

.png

.jpg

.jpeg

.webp

Or paste a URL

The .obj and .mcworld formats

An .obj is a text mesh file: vertices, faces, and a reference to a .mtl for materials. A .mcworld is a complete Bedrock Edition world — a zipped save with a LevelDB block database and a level.dat. The conversion voxelizes the mesh into Minecraft blocks, maps them to Bedrock, and writes them into a fresh world so the model opens as a playable save instead of something you have to place.

How to convert .obj to .mcworld

Select your .obj file, with its .mtl and textures if it has them, in the converter below.

Choose the build size, rotation, and block palette in the preview panel, then apply.

Select .mcworld as the export format, download the world, and open it to import it into Minecraft Bedrock.

When to use this conversion

Pick this route when you want to see the model at full scale in game on a phone, console, or Windows, without a structure block, a mod, or a size limit to work around.

Compatibility notes

The build is generated into a flat world around your model. Because voxelization chooses from the Java-side palette before mapping to Bedrock, a few blocks may be substituted for their closest Bedrock equivalent — review the 3D preview first.